Loading…
A single-player casual game. You play as Sandbox characters, parkour and idle.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Train Fest ends
Try this game before buying.
Unserious Sandbox is a single-player casual game with some unserious parkour.
Traversal is a skill-based movement game, like CS's KZ, Surf, or Minecraft parkour. The core mechanics of traversal is about using as little movement input as possible.
Play with ragdoll physics in sandbox maps. Embrace the chaos and master the art of falling flat...
One day, a Sandbox learned two words: Unseriverse, Susbicious. Then, the Sandbox became unserious and began parkour.
Lowest tracked price: €0.59 (Jul 7, 2026) · current best: €1.99.
100% positive reviews all-time.
Right now the cheapest offer for Unserious Sandbox is €1.99 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for Unserious Sandbox is €0.59 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Create a free price alert on this page and KingsPrice will email you when Unserious Sandbox drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
